Cleaner head



A B. cox

CLEANER HEAD Dec. 18, 1934.

Filed May 26, 1933 Patented Dec. 18, 1934 UNITED STATES PATENT OFFICE CLEANER HEAD A Byrl Cox, Los Angeles, Calif.

Application May 26, 1933, Serial No. 672,913 1 Claim. (01. 15-10413) This invention relates to a cleaner head of the The second flange 12 may be provided with any type used for cleaning the tubes or flues of steam suitable number of slots 14, preferably three in boilers, oil stills or the like. number. Each of the slots 14 may be of equal An object of this invention is to provide a cleansize and equally spaced with relation to each ing head which is simple in design, which may be other and from the axial center line of the cleaner 5 readily assembled and disassembled. head.

Afurther object is to provide the cleaning head The third flange 13 may be provided with a with a plurality of floating cutter pins operatively corresponding number of slots 15 positioned dimounted in suitable slots formed in the head and rectly below the slots 14 of the second flange.

retained in operative position at one end by pro- There may be three sets of cutter assemblies 10 viding the first of each series of cutters with a mounted in the cleaner head and as all of the cutflange or other similar means projecting into the ter assemblies are of substantially the same conpin bores thereof to prevent outward displacement struction one only will be described. A cutter of the cutter pins and by providing the coupling pin 16 may be mounted so as to extend relatively 15 member with a flange or other suitable means for loosely through a corresponding pair of slots 15 preventing rearward displacement of the cutter 14-15 so as to be capable of freely sliding back pins. and forth within the limits of these slots. But

A further object is to provide a cutter head before the pin 16 is positioned in the slots a first which may be completely disassembled by the recutter 17, which may be provided with a bore 18 2 moving of the coupling member. of suitable size, may be positioned between the A further object is to provide a cutter head first and second flanges with the bore 18 directly which will be simple in design, rugged in conregistering with slot 14 and then a group of any struction and inexpensive of manufacture. suitable number of cutters 19, in this instance Other objects and advantages of the invention three, may be positioned between the second and 25 will become apparent as the nature of the same third flanges with bores 20 thereof more or less is more fully understood from the following in registration with the slots 14-15. Next the description and accompanying drawing, wherein cutter pin 16 may be slid into the position as is set forth what is now considered to be a preillustrated in Figure 2 so as to pass throu h Slot ferred embodiment. It should be understood, 15, the bores 20 of the three cutters 19 and intothe however, that this particular embodiment of the bore 18 of cutter 17. Means may b provided for 30 invention is chosen principally for the purpose preventing the pin from dropping or moving of exemplification, and that variations thererearwardly out Of position, Which means y from in details of construction or arrangement clude providing the body member 10 withathreadof the parts may accordingly be eiiected and yet ed boss 21 and screw threading thereon a coupling remain within the spirit and scope of the invenmeans 22 having a flanged portion 23 of sufficient tion as the same is set forth in the appended diameter to substantially cover slot 15 and to thus claim. be in position to be engaged by pin 16 to prevent In the drawing: further rearward movement of the pin. In the Figure 1 illustrates a top plan view of the preferred embodiment of the invention, as illuscleaner head of this invention; trated in Figures 1 and 2, the bore 18 of the first 40 Figure 2 illustrates a sectional view taken subcutter may be p d d W an inwardly P stantially in the plane of line 2-2 of Figure 1; jecting flange 23a, to prevent a forward move- Figure 3 illustrates a sectional View taken subm t of t C t D While the Cutter in turn is stantially in the plane of line 3-3 of Fig. 2; a d prevented from moving forward further than the Figure 4 illustrates a side elevational view of the inne Surface of the first flange, due to the direct 45 d n r h d, engagement of the cutter therewith. Thus, it In the preferred embodiment of the inventi should be appreciated that after all of the cutters as illustrated in Figures 1 to 4, inclusive, the and pin hav n properly positioned that it is cleaner head may include a suitably shaped, more only necessary to screw the coupling 22 into its or less hollow body member 10 having a plurality operating position to complete the assembly of the 50 of spaced flanges, as for example, a first or fortool and to provide thereby a simple and effective ward flange 11 a second or middle flange 12 and a means for locking the pins and thereby the cutters third or rear flange 13. The first flange may be in their operative positions. It is to be undersmaller in diameter than the two other flanges stood that the coupling 22 engages the under face in order to provide the tool with a tapered nose. of flange 13 before the pins have reached the full 55 extent of their possible travel so as to allow the pins sufficient looseness for freely sliding back and forth in slots 14 and 15, as the case requires.

If desired, the first cutters 17 may be somewhat tapered and provided with teeth 24 while the cutters 19 may be provided with teeth 25.

In operation the tool may be assembled as described and by means of the coupling member 22 connected to the usual driving shaft of a common form of flue cleaning apparatus, which need not be described here. The flue cleaning apparatus may next be set into operation, thus causing a very rapid roiation of the cleaning head, which now by means of the driving shaft may be passed through one tube after another of aboiler orstill to remove carbon, lime or other deposits encrusted therein. The rapidly revolving cutters, due to centrifugal force, are forced to travel radially in the slots until the cutters roll around the inner surface of 'the'flue and in the well known manner remove the deposits encrusted thereon.

Having fully described the invention, it is to be understood that it is not to be limited to the details herein set forth, but the invention is of the full scope of the appended claim.

I claim:

A rotatable cleaner head including a body member having three spaced radially extending flanges, the foremost of said flanges being of smaller diameter than the diameter of the other of said flanges, the middle one of said flanges having a plurality of radially extending slots, the rearmost of said flanges having a like number of radially extending slots arranged in substantial alignment with the slots of the middle flange to form a plurality of sets of substantially aligned slots, a. pin means for each set of said slots, a cutter means rotatably mounted upon the forward end of each of said pins and retained in operative position by the foremost of said flanges, each of said cutters hav ing means for limiting the forward motion of its respective pin means, other cutter means rotatably mounted upon each of said pins between the middie and rear flanges, and a coupling means mounted upon the body and having means for limiting the rearward motion of said pins.

A BYRL COX. 

